1) inefficient parking brake
效率低的停放制动器
2) parking brake efficiency
停放制动器效能
3) parking brake failure
停放制动器失效
4) inefficient service brake
效率低的行车制动器
5) parking secondary brake release
停放紧急制动器的松放
6) parking brake release
停放制动器的松放[分离]
参考词条